Johnson Andrew L, Willcocks Alexander M, Richards Stephen P
Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK.
Inorg Chem. 2009 Sep 7;48(17):8613-22. doi: 10.1021/ic901051f.
A homologous and homoleptic series of stable Group 11 metal triazenide complexes with the general formula M(L') (M = Cu or Au, n = 2; M = Ag, n = 3) featuring the bulky triazenide ligand N,N'-bis(2,6-di-isopropylphenyl)triazene, L'H, have been prepared by the reaction of Li[L'] with the metal chlorides, CuCl, AgCl, and [(THT)AuCl], respectively, in a 1:1 stoichiometric ratio. The compounds [Cu(2)(L')(2)] and [Au(2)(L')(2)] crystallized as dimers with M...M separations of 2.4458(4) A and 2.6762(4) A, respectively. In comparison, the reaction of AgCl with Li[L'] results in the formation of the tri-silver complex [Ag(3)(L')(3)] with Ag...Ag separations of 3.01184(17) A, 2.95329(17) A, and 2.92745(16) A. Attempts to react the parent triazene system L'H with [Cu(Mes)] resulted in the formation of the novel tri-copper system [Cu(3)(L')(2)(Mes)]. In all cases the molecular structures of the resultant complexes have been unambiguously determined by single crystal X-ray diffraction experiments.
通过使Li[L']分别与金属氯化物CuCl、AgCl和[(THT)AuCl]以1:1化学计量比反应，制备了通式为M(L')（M = Cu或Au，n = 2；M = Ag，n = 3）的一系列同系且均配的稳定11族金属三氮烯配合物，其中含有庞大的三氮烯配体N,N'-双(2,6-二异丙基苯基)三氮烯，L'H。化合物[Cu₂(L')₂]和[Au₂(L')₂]结晶为二聚体，M...M间距分别为2.4458(4) Å和2.6762(4) Å。相比之下，AgCl与Li[L']的反应生成了三银配合物[Ag₃(L')₃]，其Ag...Ag间距为3.01184(17) Å、2.95329(17) Å和2.92745(16) Å。尝试使母体三氮烯体系L'H与[Cu(Mes)]反应，生成了新型三铜体系[Cu₃(L')₂(Mes)]。在所有情况下，所得配合物的分子结构均通过单晶X射线衍射实验明确确定。
